
def urbanmain() = {

  import M5a._

  assert(jumpRight("[xxxxxx]xxx", 1, 0) == 8)
  assert(jumpRight("[xx[x]x]xxx", 1, 0) == 8)
  assert(jumpRight("[xx[x]x]xxx", 1, 0) == 8)  
  assert(jumpRight("[xx[xxx]xxx", 1, 0) == 11)
  assert(jumpRight("[x[][]x]xxx", 1, 0) == 8)
  assert(jumpLeft("[xxxxxx]xxx", 6, 0) == 1)
  assert(jumpLeft("[xxxxxx]xxx", 7, 0) == -1)
  assert(jumpLeft("[x[][]x]xxx", 6, 0) == 1)
}
